Failure Analysis Case Studies II Episode 6 docx

... Failure Analysis Case Studies II D.R.H. Jones (Editor) 0 200 1 Elsevier Science Ltd. All rights reserved 185 FATIGUE FAILURE OF THE DE HAVILLAND COMET ... Chemical analysis of three bolts Bok no. Mn S P Si Cr Mo Ni Cu AI Fe 2 0.43 0.89 0.021 0.013 0.22 0.34 0.29 0.01 0.01 0.0 36 Balance 16 0.50 0 .69 0.030 0.013 0. 26 0.37 0. 26 0.01 ... fatigue c...

Ngày tải lên: 13/08/2014, 15:22

... (cm) (mm/blow) E (kPa) 6 (a) ~~ 9 40-140 165 575 10+30 90-130 62 2500 11+27 75-150 35 5500 11+25 85-145 135 785 12 95-140 46 3800 12+50 65 50 3400 6. 9 3.8 1.4 3.9 2.5 ... Count 0 10 20 30 40 50 60 70 0 10 20 30 40 50 DCP Blow Count DCP Blow Count Fig. 4. DCP sounding data. Failure Analysis Case Studies II D.R.H. Jones (...

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... it is not to involve frame bending FAILURE ANALYSIS CASE STUDIES I1 A sourcebook of case studies selected from the pages of Engineering Failure Analysis 1997- 1999 Edited by D.R.H. ... radius of the case, and rz (= 23.5 mm) is the inner radius of the case. Since k, x 1 760 MPa for the case, the failure torque is 0.98 x lo7 N mm. The total torque is ther...

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... polymer IC1 GWM 101 164 .8 162 .2 163 .74 165 .13 162 .24 164 .10 166 .73 Heat of fusion (mJ mg-') 53.48 54.85 53.18 50.11 49.21 50. 96 48 .69 maxima at about 165 °C. However, there ... on average, is 160 pm, and t is 204,000 h. Therefore, we have K = x/t'/' = 160 /(204,000)'12pm h-'I2. tso = (60 /K)' = (60 / 160 )2204...

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... and 6. Longitudinals starboard of centre girder (numbering from centre girder) 1 Brittle fracture 2 Brittle fracture 3 Brittle fracture 4 Brittle fracture Failure Analysis Case Studies ... October 19 96) Abstract-The failure of the MV Kurdistun demonstrates the classic combination of high stress, low toughness and defect which are required to cause initiation of...

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... (1.08 06+ 0 .63 86& lt; -2.4445c2 + 13. 463 5))- I. (6) 2.2.4. Comparison with failure dura. Figure 6 gives the rupture load P as a function of crack depth, a, for D = 36 mm and ... failures. TWI Research Members Report 512/1995, June 1995. Failure Analysis Case Studies N D.R.H. Jones (Editor) 0 2001 Elsevier Science Ltd. All rights reserved 147...

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... 6 Mean 1 567 502 2310 130 42 191 1732 63 0 2420 143 52 200 1780 583 2 169 147 48 1 80 2024 575 2288 168 48 189 1970 62 0 2222 163 51 184 1582 62 5 21 56 131 52 179 17 76 589 2 261 ... clearly apparent. Failure Analysis Case Studies II D.R.H. Jones (Editor) 0 200 I Elsevier Science Ltd. All rights reserved 199 FAILURE ANALYSIS AND EXPERIMENTAL STR...

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... 303 3 26 349 373 3 96 419 442 1,337,234,019, 763 6, 465 ,350,374 285,787,954 31,259,118 5 ,61 7,138 I ,38 1,747 422,137 151,134 6 1,077 27,158 13,047 66 8 1 360 9 204 1 1200 73 ... Cycles to failure (Ib) (MPa) ~ 15 30 45 60 75 90 105 120 135 150 165 180 195 210 225 240 255 270 285 23 47 70 93 1 I6 140 163 1 86 210 233 2 56...

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... 4 6 8 IO 12 14 16 PH Fig. AI. Zn02 1- h 5. c. e 0-+. Zn(0H)j passivation -+ . corrosion zn2+ - - . ._ corrosion -I - Zn immunity IIIIIIIII -2 0 2 4 6 8 ... revealed that the cracks Failure Analysis Case Studies II D.R.H. Jones (Editor) 0 2001 Elsevier Science Ltd. .All rights reserved 30 1 CREVICE CORROSION OF 316L CAUSED BY...

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... 22.28 22 .65 0. 068 bal. Manufacturing standard 0.20-0 .60 <2.00 ~2.00 <0.04 <0.04 18.00-22.00 24.00-28.00 <OS0 bal. 323 Fig. 7. ‘Mode three’ failure. In this case the ... confirms the presence of a network of crazing cracks extending into the button. Failure Analysis Case Studies II D.R.H. Jones (Editor) 0 2001 Elsevier Science Ltd. All rights re...

Ngày tải lên: 13/08/2014, 15:22